diff options
author | Takashi Iwai <tiwai@suse.de> | 2012-07-18 13:53:06 +0200 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2012-07-18 13:53:06 +0200 |
commit | 61eab000f3536f080eab43fd5eed3fd817ded76e (patch) | |
tree | d1448b3b90c5650b522c8d13d8bdd7bd65a5cf52 /kernel/pid_namespace.c | |
parent | 68e67f40b7343383517c3f951b4b8db7626406bc (diff) | |
parent | 4e01ec636e64707d202a1ca21a47bbc6d53085b7 (diff) | |
download | linux-61eab000f3536f080eab43fd5eed3fd817ded76e.tar.bz2 |
Merge branch 'topic/hda' into for-next
This is a large chunk merge for 3.6 HD-audio things
Diffstat (limited to 'kernel/pid_namespace.c')
-rw-r--r-- | kernel/pid_namespace.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 16b20e38c4a1..b3c7fd554250 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -184,11 +184,31 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns) } read_unlock(&tasklist_lock); + /* Firstly reap the EXIT_ZOMBIE children we may have. */ do { clear_thread_flag(TIF_SIGPENDING); rc = sys_wait4(-1, NULL, __WALL, NULL); } while (rc != -ECHILD); + /* + * sys_wait4() above can't reap the TASK_DEAD children. + * Make sure they all go away, see __unhash_process(). + */ + for (;;) { + bool need_wait = false; + + read_lock(&tasklist_lock); + if (!list_empty(¤t->children)) { + __set_current_state(TASK_UNINTERRUPTIBLE); + need_wait = true; + } + read_unlock(&tasklist_lock); + + if (!need_wait) + break; + schedule(); + } + if (pid_ns->reboot) current->signal->group_exit_code = pid_ns->reboot; |